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Table 2

Measured environmental parameters at each study site.

Site Dates (2015)   Velocity (m s−1) Water temp. (°C) Chl. a (µg L−1) SS (mg L−1)
Baekjae nature-like fishway 5/16   In 0.31 18.9 92.9 ± 8.9 14.3 ± 0.8
Out 20.8 ⁎⁎49.0 ± 3.7 11.7 ± 0.1
6/19   In 0.61 28.1 33.9 ± 4.0 8.0 ± 0.3
Out 29.3 ⁎⁎7.2 ± 0.6 ⁎⁎⁎4.3 ± 0.3
8/6   In 0.30 32.0 36.8 ± 1.9 10.0 ± 0.7
Out 31.8 ⁎⁎⁎19.2 ± 1.7 NS 10.0 ± 0.1
8/28   In 0.21 27.0 43.4 ± 5.7 34.8 ± 2.4
Out 28.0 33.3 ± 1.9 ⁎⁎⁎18.2 ± 1.4
9/22   In 0.43 25.5 25.1 ± 1.3 15.8 ± 1.0
Out 25.7 NS 18.3 ± 2.3 ⁎⁎11.2 ± 0.6
Sejong nature-like fishway 5/16   In 0.84 17.7 22.5 ± 2.2 14.6 ± 0.4
Out 18.4 NS 21.0 ± 1.0 ⁎⁎⁎11.6 ± 0.4
6/19   In 0.60 23.0 78.6 ± 2.6 19.2 ± 0.6
Out 25.4 ⁎⁎55.6 ± 0.6 18.1 ± 0.5
8/6   In 0.67 29.3 65.2 ± 2.3 13.8 ± 0.6
Out 28.5 ⁎⁎⁎48.6 ± 1.1 NS 13.3 ± 0.4
8/28   In 0.40 25.1 133.7 ± 1.4 20.9 ± 0.2
Out 24.7 ⁎⁎⁎108.0 ± 2.0 16.3 ± 1.6
9/22   In 0.37 23.5 155.1 ± 5.3 20.5 ± 0.5
Out 23.6 ⁎⁎⁎49.2 ± 0.8 15.9 ± 2.0
Sejong main channel 8/28   In 0.00 26.8 133.7 ± 2.8 14.8 ± 0.2
Out 25.9 NS 125.8 ± 5.9 ⁎⁎21.6 ± 0.7
Gongju Ice harbor fishway 8/28   In 0.30 25.2 78.8 ± 2.7 16.8 ± 0.6
Out 19.3 NS 77.5 ± 7.0 NS 17.4 ± 0.2
Gongju main channel 8/28   In 0.10 29.1 78.8 ± 0.5 13.0 ± 0.1
Out 27.3 NS 80.7 ± 1.4 NS 12.9 ± 0.3
Jamsil pool and weir type fishway 10/13   In 0.80 19.5 10.0 ± 4.1 2.8 ± 0.4
Out 19.3 NS 11.0 ± 5.3 NS 2.4 ± 0.0

The results of statistical analyses (paired t-test or Wilcoxon signed rank test): N.S (not significant, P > 0.05); P ≤ 0.05; ⁎⁎P ≤ 0.01; ⁎⁎⁎P ≤ 0.001.

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